Determine the domain and the range of the function.f(x) = x2 + 4x - 5
A. domain: range: {x|x ? 2}
range: {y|y ? 9}
B. domain: range: {x|x ? 2}
range: {y|y ? -9}
C. domain: all real numbers
range: {y|y ? -9}
D. domain: all real numbers
range: {y|y ? 9}
Answer: C
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Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = y2(1 - 2x), y(-1) = -1, dx = 0.5
A. y1 = 0.4, y2 = 0.63, y3 = 0.7472 B. y1 = 0.7, y2 = 0.99, y3 = 1.2656 C. y1 = 0.5, y2 = 0.75, y3 = 1.03125 D. y1 = 0.7, y2 = 0.99, y3 = 1.9136
Express the number in scientific notation.216
A. 2.16 x 102 B. 2.16 x 10-2 C. 2.16 x 101 D. 2.16 x 103
Rewrite the fractions as equivalent fractions with the LCD.
and 
; 45
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Determine the number of terms and identify the coefficient of each term of the expression.-8h
A. 2; 8h B. 1; -8h C. 1; -8 D. 1; 8